G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/00 (2006.01) G01N 27/02 (2006.01) G01N 33/28 (2006.01) G01N 33/30 (2006.01)
Patent
CA 2440242
A method of monitoring a highly electrically-resistive fluid such as a motor oil or lubricant, applying an AC electrical potential across the fluid at a first frequency and a first DC offset such that a first electrical response results; measuring the resulting first electrical response; applying the AC electrical potential across the fluid at a second frequency for a non-zero first DC offset voltage, a second DC offset or combinations thereof resulting in a second electrical response; wherein the second frequency and the second DC offset being different from the first frequency and the first DC offset respectively; measuring the resulting second electrical response; and analyzing the fluid's quality and/or condition from the measured first and second electrical responses to the respective first and second applied electrical potentials.
L'invention concerne un appareil et un procédé de surveillance d'un fluide très résistant électriquement.
Boyle Frederick P.
Lvovich Vadim F.
Ridout & Maybee Llp
The Lubrizol Corporation
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